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AgentCore Runtime Gains Persistent Interactive Shell Sessions for Agents
Persistent shell sessions sound like a minor infrastructure update. They're not. AWS AgentCore Runtime's new interactive shell support means agents can now hold state across commands — environment variables, working directories, live processes — inside sandboxed microVMs, with up to 10 concurrent sessions per runtime. That's the difference between an agent that runs a script and one that actually operates a system. Multi-step builds, test-deploy cycles, long-horizon tasks: the ceiling just moved.
Full analysis
AWS AgentCore Runtime now supports interactive shell sessions, giving agents persistent terminal access to their sandboxed microVM environments. Unlike one-shot command execution, these shells maintain state across commands — environment variables, working directories, and running processes persist for the lifetime of a session — with up to 10 concurrent shell sessions per runtime session. This significantly expands the kind of long-horizon, stateful tasks agents can perform, such as multi-step builds, testing, and deployments without losing context between steps.
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